diff --git a/src/tini.c b/src/tini.c
index 1a52f58..40142ad 100644
--- a/src/tini.c
+++ b/src/tini.c
@@ -16,11 +16,11 @@
 
 #include "tiniConfig.h"
 
-#define PRINT_FATAL(...)    fprintf(stderr, "[FATAL] "); fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n");
-#define PRINT_WARNING(...)  if (verbosity > 0) { fprintf(stderr, "[WARN ] "); fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n"); }
-#define PRINT_INFO(...)     if (verbosity > 1) { fprintf(stdout, "[INFO ] "); fprintf(stdout, __VA_ARGS__); fprintf(stdout, "\n"); }
-#define PRINT_DEBUG(...)    if (verbosity > 2) { fprintf(stdout, "[DEBUG] "); fprintf(stdout, __VA_ARGS__); fprintf(stdout, "\n"); }
-#define PRINT_TRACE(...)    if (verbosity > 3) { fprintf(stdout, "[TRACE] "); fprintf(stdout, __VA_ARGS__); fprintf(stdout, "\n"); }
+#define PRINT_FATAL(...)                         fprintf(stderr, "[FATAL tini (%i)] ", getpid()); fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n");
+#define PRINT_WARNING(...)  if (verbosity > 0) { fprintf(stderr, "[WARN  tini (%i)] ", getpid()); fprintf(stderr, __VA_ARGS__); fprintf(stderr, "\n"); }
+#define PRINT_INFO(...)     if (verbosity > 1) { fprintf(stdout, "[INFO  tini (%i)] ", getpid()); fprintf(stdout, __VA_ARGS__); fprintf(stdout, "\n"); }
+#define PRINT_DEBUG(...)    if (verbosity > 2) { fprintf(stdout, "[DEBUG tini (%i)] ", getpid()); fprintf(stdout, __VA_ARGS__); fprintf(stdout, "\n"); }
+#define PRINT_TRACE(...)    if (verbosity > 3) { fprintf(stdout, "[TRACE tini (%i)] ", getpid()); fprintf(stdout, __VA_ARGS__); fprintf(stdout, "\n"); }
 
 #define ARRAY_LEN(x)  (sizeof(x) / sizeof(x[0]))